Templates as functions

UL4 templates can be called as functions too. Calling a template as a function will ignore any output from the template. The return value will be the value of the first <?return?> tag encountered:

from ll import ul4c

code = """
   <?for item in data?>
      <?if "i" in item?>
         <?return item?>
      <?end if?>
   <?end for?>

function = ul4c.Template(code)

output = function(data=["Python", "Java", "Javascript", "PHP"]))

With this, output will be the string "Javascript".

When no <?return?> tag is encountered, None will be returned.

When a <?return?> tag is encountered when the template is used as a template, output will simply stop and the return value will be ignored.